Hi all, I’m new here, so please forgive any breaches of protocol…
I am trying to develop a traction kite for a boat. It will really be a rigid tethered glider. I want to use GPS and barometry to track the position of the kite.
The kite needs to fly in a figure-8 pattern. And since it’s tether needs to be close to horizontal, the figure-8 will be roughly vertical. The time to fly one figure-8 will be around 40 seconds.
So the glider will be aerobatic. Question is, how can I maintain continuous GPS position during such manoeuvering. Clearly, a GPS antenna fixed inside the glider will not always be pointing up.
Can this be done?
I can think of 3 possible ways:
- Use multiple GPS units. But will a GPS unit get a fix quickly when its antenna comes to see the sky?
- Rotate the antenna using servos. Like camera pan & tilt.
- Let inertial guidance fill in the gaps.
Is there any established wisdom on this question? I’m noticing some material on full-size aerobatics which seems to say you can’t trust GPS.
I’d appreciate any input… Tridge? Others?
- Geoff Draper, Orbost, Vic 3888.